VK3NX
Australian Amateur Radio Station
23 cm EME
23 cm Equipment

- VK5EME  Transverter kit  with 144 MHz IF

- Local Oscillator is "G8ACE OCXO"

- Power amplifier is homebrew XRF286  (Running at 300 W  CW  and 400 W PEP SSB - High Power permit
issued from ACMA)

- LNA is WD5AGO 32dB gain with NF= 0.29dB

- Feed..  RA3AQ Optimised septum feed made from 0.5mm thickness Copper sheet.  It uses an SMA feed
probe for both Tx and Rx ports and an SMA Relay for LNA isolation. (At present the "choke flange" is not in
use)

- 144MHz IF radio is an IC746  or IC7700
Current System Performance:

Sun Noise = 11.6dB  (SFU = 72)

Moon Noise = 0.22 dB  (@ Perigee)

CS  /   GND  = 5.2dB  
(@ El = -1 degree...Ant B/W = 4.38 degrees @ dB)
XRF 286 @8  Amplifier
3.7 m Dish
Audio Clips of 23 cm EME
VK3NX ECHO 1
VK3NX ECHO 2
DL4MEA
HB9GR
OK1CA
K1RQG - SSB -1
K1RQG - SSB -2
OZ4MM
RA3AQ
VK3UM
Link to my 23 cm EME Log - Book